<div style="width: 100%; text-align: center; margin-top: 20px;">
    <ul class="large-menu">
        <li>
            <a href="<?php echo $this->getBaseUrl(); ?>HoaDon/ChonMua">
                <span class="fa fa-shopping-cart"></span><br/>
                Bán hàng
            </a>
        </li>
        <li>
            <a href="<?php echo $this->getBaseUrl(); ?>HoaDon/DanhSach">
                <span class="fa fa-list-ul"></span><br/>
                Danh sách hóa đơn
            </a>
        </li>
    </ul>
</div>